A disc is obviously uncatchable only when it hits the ground before a catch could possibly be made, is out-of-bounds with no possibility of an in-bounds completion, or otherwise presents no opportunity for a catch (whether initial or subsequent efforts), giving every benefit of the doubt to the calling player. In determining whether a dangerous play affected the play under 17.I.1.b.3, the calling player should broadly consider the entire play, including any approach taken by the offending player immediately before the dangerous play. A good rule of thumb is to look to the last time when a player could have still changed their actions and actively avoided a dangerous outcome but did not (the "point of no return") through the time immediately after resolution of the play and broadly consider whether the outcome of the play could possibly have been different, had the offending player taken a safe approach. Even a player's awareness of the presence of the offending player can affect the play.